For an inclusive and multi-benefit flood risk management overview of existing tools, preamble of an action methodology for a french-belgian cross-bor der case study

For a long time anchored under the acronym of resistance, our global flood risk management strategy is essentially based on civil engineering measures: dams, pumping stations, outlets, pipelines, ... Although they have proven their worth on many occasions, they are not without consequences and tend to reach their limits. They have an environmental, social and economic impacts on our societies and also contribute to the loss of the culture of risk within populations. The sad events that have occurred recently, particularly in Europe, show that these infrastructures, legacy of our past, are no longer adequate with the new ecological and climatic challenges of the 21st century. How then can we adapt our flood risk management strategy in order to reconcile society, environment and risk? Wouldn’t the answer be in the erasure of these robust infrastructures, all concrete clad, in favour of softer measures, reconciling flood risk management and the development of biodiversity, which is essential to the survival of humanity and provides ecosystem services? Some politicians are already initiating action plans to adapt their territories. An overview of existing tools in this field and the scales of action for flood risk management will be carried out. Firstly, it will provide an overview of the possibilities of operations and secondly, to see to what extent these actions are transferable from one territory to another. In a second step, this study would allow us in a second step to determine, in the more specific case of the cross-border territory formed by the arrondissements of Mons and Valenciennes, which tool could be developed for flood risk management through the absorption and nature.